When it comes to evaluating the popularity of your site overall in its particular niche, a webgrader can be an invaluable tool. As the name might imply, a webgrader is designed to analyze the various popularity metrics of a given URL throughout the web, and then returns a letter grade evaluation of the site in question. The higher the webgrader ranks a site, the more popular it is overall. Notably, most webgrader programs offer specific advice regarding the weaker areas that may be detected in your online promotional efforts, so the criticism is as constructive as it is objective.
However, it should be noted that not all webgrader options out there are designed identically, so one webgrader may not return the same evaluation for a given site as a different webgrader that you might choose. Knowing that the algorithms of each webgrader program out there can vary by quite a bit, it does pay to research exactly which aspects are weighted most heavily by the most popular webgrader options out there, and collecting several different webgrader URLs to fully evaluate your promotional efforts.
At this point, search the web for webgrader reviews, and take a look at what others in your situation have had to say about their experiences with different options. Take a look at the algorithms used with each webgrader that seems particularly promising, and choose several different options that have fairly significant differences when weighting their evaluations. Bookmark these sites, and enter your URL of choice into each webgrader in turn. Determine your weakest points in your online promotional efforts, and use the advice of your webgrader to correct them. Be sure to repeat this process periodically in order to obtain and maintain a high web ranking over time!